Jacket for water heaters



March 13, 1945.

c. H. MORRC JW 2,371,347

JACKET FOR WATER HEATERS Filed Aug. 22, 1942 2 SheetsSheet 1 I l l I J3. Y Ill, 1. I H t wi l 5 @fl; I I 1H! EINVENYTOR." I

' CLARENCE H. Moekow t BY v -1 ATTORNEYS March 13, 1945. c.-|-|. MpRRow ,3 JACKET FOR' WATE R HEATERS Filed Aug. 22, 1942' 2 sheets-sheet 2 INVENTOR. CLARE/m5 A. MORROW ATTORNEYS mw a i I 1 2,811,847 I I I I JACKET FOR'Wn'I'EB HEATERS Olsrenee B. Morrow, semen is, 0hio,; siznor to The Hotstre'em Hester Company, (llevelaml, Ohio, s corporation at Ohio. npplicstion sometime. Serial No. 1 li5 ,'i(l4 This invention relates to enclosing Jacketsior laterally extending drain nipple. two oi the side .water heaters. the-invention being particularly well oi Isaid'iacket hsving'complementery I applicable to storage'watsr heaters. w j notchesin their adjacent side edgesior The present invention hssiorjit's general ohoeptio'n oi saiddrnin nipple, the joint strip beflect the rovisionjoia "terheater i t which tween said two panels hem: interrupted at soul is o'i'simple and inexpensive iorm,,of strong and nip'pie, and the adjacentends oi said Joint strip. sturdycharacter, andawhlch is largely made otet suchjnterruption. being covered has ierriiie 1 nonmetaliie material. 7 Y I '01- the like surroundings'ein-girsin nippl'e 1 A- iurther obiect oi the presentinvention is I -Further objects oi the present invention. end the provision oia water heater iscket having n many of its practlcel'odvantsges,will bereierred 1.} snenclosinz side woll 'ishricsted irom a series to in'or will be evident from the iollowine deof strong. durable-and inexpensive "'nonmetellic ocription. of two en bodln ents oi such invention. panels, said ponelsbeing arranged side by sidereierencebeinghad to the-accompanying drewin uprishtmsition int lie thereonzond loss, in whic V capable oi compact shipment end storaee prior" 1 1 is n front elevstionsl view oi a meter mil eu-use, I I *he'ate'r-havlnganencioslns ioeketemthe'i A iurther objector the p'resentinvention is present inventio'mr t e provision of a water heater 'iscket inwhich 2 is aside elevstionel view thereof: eschoi'the nonmetellic silievmll'psnelsoonsistsvv B'ls. 3is'otopplsnviewthereoi; oi an outer layer oi relatively hard sndrelsn Fig. is aperspective view or auction oione tively dense materiel, such as fibre gloss or es- I oi thejaeket side wall panels;

lie-.2308, and an layer oi Mills a perspective view-oi a section oi one material. such ss-rocl: wool or tlislike. Preioi the Jecketsldewall iointstrips; I I v erabiy. each oi ssio'panels is. oi- ,u nitery;iorm-. T ,FlsJB isn' vertical sectional-view 'oi'ssld water 1 the inner layer oi-insulotin: materiel being oil-4s heater-.91; the'line H.rl:.'i: v I

hesively'secured to-or otherwise suitably, rat; I is a cross-sectionel'viewthereoi. on'the by said outer relatively herd end reietively' dense I lln 'l-i- Fir-.- 8.; l layer, I f Fleisissirontelevstionelvlewoithetpor Aiurtherobiect oi the patent-invention n ma.- 'tio n oi the n w side well through which e:-; provision oi as wsterhes'ier iechetin which the tends the drein nipple oi the water storage tent. sids well pencilv are msintsined in sitie-lzv-silie the ferrule which surrounds said nipple beinereenclosing relstionshiphy or movediend I v equivelent mesnsoi the-isckettop end bottom .,;,I' 'le'. s is. eview correspondine tem, 'r'snd -Q 'ceps or'ciosures.

v I lhowin': s slightivniodiiledionntoijete vm.

J "P 01 i v n min mew i ke ie iw l Mm- :lgnuointmmmeneetmetneemmnbie 8,019 s. rm ne nmthee er-le kets'h "Imamt to i -m-mu mt-m mm n' ne -mu oi the penelsjend flie tll'not-liinited'tothe cletnils-oioonstrnotion or the :eno of strips surrounded specific 's r qs mentoi illlllti'nteil end cussed athe manor-1mm 8 m. o described. a theiov ntion o vi usly mu une- I oi the iecket-top sno'bottoniospl other jiorzns; ;It.--;1' :n t ;b closures. I I

' I th'e.terminoloeyorp j oey'herein employed I Aiurther object)! the present invention-is .0 is ior'thej p l l'eioi'o end not provisionpi e nter'hester'iscket in yhiehthe tstion, the scope'bi; the present upright side well'psnels and the ioint stripm indioetedbythe-sppended claims.v the ere encircled and enze ed intermefrh e weterheeter illustrsted in Figs. 1 to 8 diets their ends bye sheet metal band or equiv-' inclusive. tor the discloslireoi one iorm or on slept meens. the iunctionioi which is't'o prevent 5i enclosing Jacket embodying the present um. I in! outwsrdhulzinl or bovine oi ssid penels 'tion. includes an uprieht w'ster stome tenk ll", orssid iolnt strips. oi the-usual cylindrical-term, being A further obiectoi the. present, invention is mode oi steelor other Below the provision oi on enclosins locket ior a vote: 1 ssidjiank is a combustion ll contains More tent provided with s U In esuiteble burner ll-o Bunsen-type emu said tank. In the present instance, the side walls of the tank ill and the combustion chamber ii are formed by a hollow tubular metal member. closed at its upper end by a convex cap I: (which constitutes the top wall or the storage tank) the lower end of said tube being welded or other.-

wise suitably secured to the tank bottom wall I and the upper end portion ofsaid tube extendin through a suitable aperture with which the tank top wall It is provided. For the retardation of the hot combustion gases flowing upwardly through said flue passageway, to the end that the water in the storage tank may absorb from v such gases as much of their heat as possible,

suitable bellies (not shown) may be located in said flue passageway, as will be readily understood. Gas is supplied to the burner i2 from the supply line It, and included in such line, as isusual, is a suitablevalve "for controlling the flow oi gas to said burner, the immersion therbeing responsive to the temperature of the water therein.- The thermostatically controlled valve I! may be, and here is, by-passed by a pilot gas supply line is, and a thermostatically controlledvalve It may be included, if desired, in the main gas supplyline it-ror shutting off the supply of gas to the burner I: should the pilotlight become extinguished.

Suitably secured in the tank top wall I3 is an upright nipple 2| to which is connected a .de-

' mostat ll here shown for the control of said valve-extending radially into the tank is and asvaar gas burner, as shown-ior' heating the water in twined or matted flbre glass, rock wool or the like. The inner layer of insulation is of considerably greater thickness than that of the outer layer and is carried by said outer layer by the use of any suitable means. In. the present instance, the layer of insulation, which is coextensive in area with that or the outer layer 2-5, is adhesively secured to said outer layer, the adhesive, in liquid form, being preferably applied to the inner surface of the outer layer. Each panel, therefore, is of unitary form, which enables them to be readily handled and easily and conveniently assembled side by side to provide an enclosing jacket side wall. Although the thickness of the insulation layer 2| of each panel and its yieldability or compressibility may be such as to enable it to engage, through substantially its entire width, the tubular metal member which constitutes the side wall of the storage tank I. and the combustion chamber ll therebelow, said tubular member is here engaged only by the middle portions of the panel insulation layers, the side edges of such layers being slightly spaced from said tubular member and said middle portions being slightly compressed thereby, as clearly shown in Fig. '7. Inasmuch as normally, before the panels are assembled with each other, the two layers of each panel are 0! equal width, with coinciding side edges, the hexagonal arrangement of the panels and their consequent tangential relationship with the cylindrical sidewall of the storage tank and the combustion chamber result in a slight inward bulging oi the insulation layers I at their meeting side edges'(see Fig. 7), the efpending pip 22 for the supply of cold water to the storage tank, hot water being withdrawn from the tank through an upright nipple l3 suitper end ofthe flue tube It communicates, of course, with .a suitable pipe (not shown) leading tothestack or chimney. Referring now to the water heater Jacket of AH. 1 to 8 inclusive, it will be noted that said Jacket comprises, as is usual, an enclosingside wall, a top wall and a bottom wall, the iacket bottom wall constituting the bottom wall of the combustion chamber il'.

As will be evident from Figs. 1, 2 and 6, the Jacket side wall comprises a series of upright panels 24 arranged side by side in continuous manner so as to completely surround thestorage' tank II and the'combustion chamber ii there- '7) there are sir; such panels which form a jacket side wall of hexagonal form, the panels being substantially duplicates, diflering only to the extent that is necessary to alter certain panels for the reception of the water heater door (to be hereinafter referred to) and to provide the necessary openings for pipes and the like, as will hereinafter more fully appear. v

Asbestshowninl 'lg.i',eachofthesidewall panels '14 comprises an outer layer 2| of relatively hard and relatively dense sheet material,

such as fibre glass, asbestos orthe like, and an feet of which is to bring such edges in rather close proximity to said tank and combustion chamber side wall, as will be readily understood.

As here shown, the top and bottom walls of theiacket are in the form or sheet metal caps, the peripheral flanges 21 of which engage the outer surfaces of the end portions of the side wall panels 2| and thus maintain said panels in enclosing siderby-side relationship. Although said cap flanges 21 may be of uniform width, they are here shown as of generally scalloped form, which enhances the appearance of the jacket as a whole without any sacrifice in the panel-holdbottom portion of such cap with one or more air inlet openings for proper combustion 0! the as supplied to the burner il, a single centrally disposed secondary air inlet opening 3! being here shown.

In the embodiment'of the invention here illustrated in Figs. 1 to s inclusive, strips oi generally Tr-shaped crossysection, are disposed at the joints between the sidewall panels 24. As best shown in Fig. '1, each of said strips has a body portion extending radially inwardly between the neighboring side edges of a pair of adjac nt panels,

and a headed portion overlying suchpanel side edges. Although these Joint strips ma be made as one-piece members, of metal, plastic material 'ortheiike,eachsuchstripishereiormed,as inner layer It of resilient insulation, such as am 1'0 b'estshowninl'lg.5,fruntwoidenflcalsheet vention will be evident from the ioregoing de-' 1 assess? the panels in continuous side b side relationship A with the side edges of their hard outer layers closely adjacent and consequently with side porand each comprising an outer layer 01' relatively hard and dense non-metallic material and an inner soiter layer oi resilient insulating material permanently secured to said outer layer, the two layers of eachpanel being normallyj'bi equal width, the jacket top and bottom walls having .peripheral flanges ensasins'the end portions of the outer layers of said panels for maintaining the panels in continuous side by side relationship with the side edges of their hard outer layers closely adjacent and consequently with side por' tions oi their softer inner layers under compres-- 'sion.

2. A water heater enclosing jacket, comprising a a side wall of continuous form, a top wall, and a bottom wall, the Jacket side wall comprising a series of unitary panels arranged side by side and-each comprising an outer layer or relatively expand.-

tions 01' their softer inner layers under compression, and means engaging said panels between the jacket top and bottom walls in preventing any outward bowing of said panels by reason of the tendency of the compressedlinner layers to Jacket, comprising 3. A water heater enclosing a side wall of continuous form, atop wall, and a cottom wall, the iacket side wall comprising a series of panels arranged side by side and each m comprising an outer layer'oi relatively hard and dense, non-metallic material and an inner setter layer oi resilient insulating material; the two layers of each panel being normally of equal width, the jacket top and bottom walls having peripheral flange portions engaging the end por.

tions of the hard outer layers of said panels for maintaining the panels in continuous side by side relationship, with the side edges of their hard outer layers closely adjacent and consequently hard and. dense non-metallic material and an inner softer layer of resilient insulating material permanently secured to said outer layer, the two layers of each panel being normally of equal width, the jacket top and bottom walls having peripheral flanges ensagini: the end portions of the outer layers of said panels for maintainin with the side portions of their softer inner layers under compression, and T-shaped joint strips arranged with their webs lying between adjacent panels and having lateral flanges overlying the outer surfaces or the'side edges of said panels, the ends of said strips being enclosed and consip fined between flanges oi the top and bottom walls.

CLARENCE n. uonaow 

